Spikey Ball

“rolling against a wall or on the ground with one of these will relieve tension, stimulate muscles and improve circulation. a mini massage for tightness and pain.”

“a real hack for long flights, chuck one in your bag, great for feet, great for digging into your legs/back, or for tmj sufferers like me, rolling on your jaw. (i love spikes! can you tell!). also a very good cheap random gift to give to people if you buy a multipack.”